Experimental and Analytical Studies on the Kinematics of a Damage Zone during Fatigue Fracture

Abstract

This report provides a summary of the results obtained in a research program on damage evolution before crack initiation and during slow crack propagation on a model material. First the main results on crack initiation are given. Subsequently, damage evolution within a process zone is described in some details. Results of the effects of stress rate and stress level on crack damage evolution is presented next. In appendix A, an approximate method to evaluate energy release rates due to damage growth is applied using the data on crack initiation.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1992
Accession Number
ADA251887

Entities

People

  • John Botsis

Organizations

  • University of Illinois at Chicago

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Biomedical And Dental Materials
  • Coordinate Systems
  • Crack Propagation
  • Cracks
  • Dielectric Polymers
  • Engineering
  • Experimental Data
  • Finite Element Analysis
  • Geometry
  • Materials
  • Materials Science
  • Materials Testing
  • Mechanics
  • Plastics
  • Polymers
  • Thickness
  • Waveforms

Readers

  • Computational Fluid Dynamics (CFD)
  • Metallurgy
  • Nuclear and Radiation Engineering.